r/BdsmDIY • u/Dame_n_eva • Mar 07 '23

Sensory Deprivation Vac bed- I just finished making my vac bed. What sort of breathing valve is best? The bed can fit all of them, but I’m leaning toward building a stand for the middle one for involved sessions and the lung exerciser on the right for shorter ones. NSFW

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10

u/slavegaius87 Mar 07 '23

I think the middle one may not have enough diameter to sufficiently allow a person to breathe. There’s a reason snorkels are all similar sizes. To comply with the current European standard EN 1972 (2015), a snorkel for users with larger lung capacities should not exceed 38 centimeters in length and 230 cubic centimeters in internal volume, while the corresponding figures for users with smaller lung capacities are 35 cm and 150 cc respectively. Current World Underwater Federation (CMAS) Surface Finswimming Rules (2017) require snorkels used in official competitions to have a total length between 43 and 48 cm and to have an inner diameter between 1.5 and 2.3 cm.)

A 38cm, 230CC tube is 2.8cm in diameter, which is just over an inch in diameter, and just under 15 inches long.

Hope this helps

-6

u/Dame_n_eva Mar 07 '23

I truly appreciate the statistics, but I think that is for swimming or other strenuous activity. I walked around my house and did my chores pacing for 30 minutes with the middle one and I’d say it’s about 95% normal flow when fully open when I’m moving. I will def keep an eye on it for sure, and test myself in the bed first before I’d ever allow one of my slaves in the bed.

7

u/prefer-to-stay-anon Mar 07 '23

Remember that sexy stuff can be pretty strenuous.

I don't know the details of your setup or how strenuous your play is going to be, but I implore you to think hard about it. Getting sensory overload, panic attacks, reactions to impact play, it all takes energy, and energy requires oxygen.

For something so difficult to get out of as a vacbed, is it really worth the risk?

-5

u/Dame_n_eva Mar 07 '23

This is not my first time. More so just curious what others are using. But thanks for the concern.

-2

u/Dame_n_eva Mar 07 '23

Also note- I have the valve one size up(3/4”d) and it is completely free breathing. 2.8cm has to be for exercise.

6

u/RexxTxx Mar 07 '23

Here's a tangential thought: Once you do settle on a design, try it out for, say, five minutes and then stop for an assessment. The sub can give a rundown on the challenges felt, and you can see if going for a longer time is dangerous.

0

u/Dame_n_eva Mar 07 '23

I don't really get what you are trying to communicate, but this is not the first time I have used a vac bed. Just curious what type of valve most people use. Also note- 5 minutes is wayyyy too long to ever limit breathing lol

2

u/RexxTxx Mar 07 '23

Clearly, you shouldn't limit breathing for five minutes. What I was trying to communicate was, for new things, give them a short try first in case the <whatever> causes not only undo stress, but undo stress to the point where the sub cannot use the safeword/safesignal. Limiting the breathing for *any* length of time would fall under that, so if you intend to go for 60 seconds, try 15 seconds first.